Lubricator



E- FROST.

LUBRCATOR APPLICATION FILED OCT. 13. I919.

353 95L PatentedSept. 28,1920.

UNITED, STATES PATENT OFFICE.

' ELMERITROST, OF MUSKEGON 'HEIGHTS, MICHIGAN.

- L'UBRIcAron.

Application file d October 13, 1919. Serial No. 330,465.

' To all whom it may concern:

Be it known that I, ELMER Fnosr, a citizen of the United States,residingat Muskeon Heights, in the county of Muskegon and tate of Michigan, haveinvented certain new and useful Improvements in Lubricators, of whichthe following is a specification, reference being had to the accompanyng drawings. j

This inventionrelates to lubricators, an d has for its object to providea device of this character which permits a discharge of lubricant fromthe cup or reservoir into a chamber on the intake stroke of the engineand permits the discharge of the lubricant from the chamber to the partsto be lubri cated during the compression firing and exhaust stroke ofthe engine.

Another object is to provide a cup to which an outlet member isconnected, the outlet member including a chamber having a valve seat inits lower portion and an ad justable valve seat in its upper portionwhich alternately cooperate with the valve to permit the discharge oflubricant from the cup to the chamber and from the chamber to theengine.

These objects are attained by the mechanism illustrated in theaccompanying drawings, in which:

Figure 1 is a side elevation and sectlonal View of the lubricatorshowing the valve mechanism.

Fig. 2 is a sectional View taken on line 22 of Fig. 1.

Referring to the drawings, 5 indicates an outlet member having athreaded stem 6 adapted to be inserted in the engine. A bore 7 extendsthrough the outlet member and is enlarged at its upper portion toprovide the chamber 8. The merging portion of the chamber 8 and bore 7includes a valve seat 9. The upper end 10 of the outlet member 5 has itsouter surface threaded and reduced to provide an annular shoulder 11.Engaged with the threads and shoulder of the end 10 is a supporting disk12 having an annular flange 18. This disk is intended to support the cupor reservoir 14, the upper end of which is closed by a cover 15.

The end 10 of the outlet member 5 has its interior surface 16 threadedand adapted to receive an adjustable bushing 17 The bottom of thebushing 17 is provided with a recess 18 having inclined walls whichserve as a valve seat 19. A plurality of passages 20 extend through theadjustable bushing 17 and communicate with the cup 14 and chamberS.Extending from the upper portion of the adjustable bushing 17 is a rod21 which extends through the cover 15 of the cup and is provided with anadjusting head 22.

Slidably disposed in the chamber 8 is a valve 23 having its upper andlower ends beveled to conform to the valve seats 9 and 19. Extendingthrough the valve 28 longitudinally thereof is a plurality of passages 2the upper ends of which are closed by the valve seat 19 while the lowerends are closed by the valve seat 9 in the operation of the lubricator.The lower portion of the valve 23 is reduced to provide an annularrecess 25 in which an expansion spring 26 is mounted. This spring isintended to force the valve into engagement with the valve seat 19.

In operation, on the intake stroke of the engine, the suction caused bythe intake moves the valve 23 downwardly against the tension of thespring 26 and causes the lower end of the passages 24 to be closed bycontact with the valve seat 9. During this operation, the valve is movedaway from the valve seat 19, thereby permitting the discharge oflubricant from the cup, through the passages 20 and into the passages 8of the valve. On the compression, firing and exhaust of the engine, theresistance to the spring 26 having been removed, it causes the valve tomove upwardly and engage the valve seat, thereby closing the upper endsof the passages 8 and permitting the oil previously admitted to thepassages 8 to be discharged through the bore '7 to the parts to belubricated. The adjustable bushing permits the size of the chamber to beincreased or decreased to regulate the quantity of oil to be dischargedwithout adjusting or interfering with the oil passages in the bushingand valve. It also permits all of the oil in the cup to be discharged,as the bushing can be adjusted or moved into the chamber, as shown inFig. 1 so as to drain the oil re maining in the bottom of the cup.

Vhat is claimed is 1. A lubricator comprising a cup, an out let memberfor said cup, said outlet member having a chamber, said chamberincluding a valve seat in one end, a bushing including a valve seat,said bushing being disposed within and forming the other end of thechamber and having passages communicatingwlth the cup a-nd the chamber,a rod carried by Y said bushing and projecting abovethe top of the cup,said bushing being adjustable by the rod to increase or decrease thesize of the'chamber, a valve in said I passages extending longitudinallythereof,

chamber, said valve having a plurality of means for urging one end ofsaid valve into engagement with the valve seat of said bush ing, andpotential means for urgingfthe other end of the valve 1nto engagementwith the valve seat of the chamber.

'2. A lubricator comprising a cup, an out let member for said cup, saidoutlet member having a chamber, said chamber including a valve seat inone end, a bushing adjustably mountedin the chamber and forming theother end thereof, said bushing having a valve seat in its lower surfaceand having a recess at the base of the valve seat and passagescommunicating. with the recess and the cup, manually operable meanscarried by the bushing for adjusting said bushing to increase ordecrease the length of the chamber,

a valveinj said chamber, said valve having a pluralityof grooves, theupper end of said signature. 1 a

' ELMER F ROST.

